/* 
 * Copyright (c) 2009, Giora Kosoi giorak@gmail.com
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Giora Kosoi ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL Giora Kosoi BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sparrow/annotator.h>
#include <sparrow/reactor.h>
#include <sparrow/variant_headers.h>
#include <sparrow/util.h>
#include <sparrow/errors.h>

Annotator::Annotator(Reactor *r, const std::string &config)
    :   Handler(r)
{

    WordVector words;
    parse_words(config, words);

    if(words.size() % 2 != 0)
    {
        throw_error<std::logic_error>(__FILE__, __LINE__,
                "incorrect number of arguments for Annotator: config = %s", 
                config.c_str());
    }

    for(int i = 0; i < words.size(); i += 3)
    {
        annotations_.push_back(Annotation());
        annotations_.back().name = words.at(i);
        annotations_.back().value = words.at(i + 1);
    }

    register_input(0, this, &Annotator::input);
}

Annotator::~Annotator()
{
}

void Annotator::input(VariantSet *v)
{
    AnnotationVector::const_iterator i;
    for(i = annotations_.begin(); i != annotations_.end(); ++i)
    {
        v->set(i->name, new VariantString(i->value));
    }
    push(0, v);
}

